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Publication numberUS2939461 A
Publication typeGrant
Publication dateJun 7, 1960
Filing dateApr 9, 1957
Priority dateApr 9, 1957
Publication numberUS 2939461 A, US 2939461A, US-A-2939461, US2939461 A, US2939461A
InventorsCurt G Joa
Original AssigneeCurt G Joa
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sanitary napkins with external padding
US 2939461 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

June 7, 1960 c, JOA


Arramvsv) United States Pat nt This invention relates to sanitary napkins with external padding.

A sanitary napkin made according to the present invention promotes comfort and saves material. A pad of any appropriate type is made thinner and narrower than is usual. It may be enclosed in gauze in the usual way to provide support for the sanitary napkin, the gauze also being somewhat narrower than is usual.

Overallwidth is restored by external pads or cushions of cellulose which are confined within a filmy layer of non-woven fabric that is attached mechanically by threads or adhesive to the gauze, the attachment preferably being made before the gauze is wrapped around the pad proper. The length of these cushions and the supplemental wrappers may be shorter than the pad and, of course, very much shorter than the overall length of the gauze. One ply of the external cushion materialmay be impregnated with petroleum jelly or the like. Even when not impregnated, the external cushion with its non-woven fabric cover is much less harsh to the touch than is the exposed gauze conventionally used.

The cushions not only add comfort but increase the safety since they provide barriers which are not only absorptive of fluids but act as dams to confine the fluids and constrain them to enter the pad proper.

In the drawings:

Fig. 1 is a view in perspective of a sanitary napkin embodying the invention.

Fig. 2 is a diagrammatic view showing the relationship of the parts when the sanitary napkin is in use.

Fig. 3 is a view taken in cross section on the line 3-3 of Fig. 1.

Fig. 4 is a greatly enlarged detail view representing a small fragment of the structure shown in Fig. 3 within the outline of the circle drawn in Fig. 3.

Fig. 5 is a plan view of a web of gauze showing the attachment of the cushion thereto and showing in broken lines the position which the pad will occupy.

Fig. 6 is a view taken in transverse section on the line 66 of Fig. 5

Fig. 7 is a fragmentary view similar to a portion of Fig. 5 and showing adhesive rather than stitching used as a means of connecting the non-woven fabric 21 to the gauze 15.

Fig. 8 is a diagrammatic view in side elevation showing the assembly of a number of plies of cellulose to provide a web of cushion material.

The sanitary napkin pad per se may be fabricated according to any desired structure. In one well-known device, the pad comprises superimposed bats 10 and 11laminated with intervening moisture distributing plies 12 (Fig. 3) and confined between facing plies 13 and 14 of tissue. The pad thus assembled is wrapped in a gauze wrapper 15, the ends of which project well beyond the pad as shown in Fig. l for connection to a belt or the like.

In accordance with the present invention, the gauze web 15 is provided prior to the wrapping of the pad therein with a pair of cushions generically designated by reference character 16. Each of these comprises a num ber of plies of cellulose material (four being used in practice) of which only the outer ply is impregnated with petroleum jelly. The three unloaded plies are resp eptively designated by reference characters 17, 18 andf19 in Fig. 4, while the impregnated ply is shown at 20, the

stippling representing the petroleum'jelly impregnation;

These several plies are bound in assembledrelation by a ply 21 of non-woven fabric which is sufiiciently wider.

than plies 17, 18, 19 and 20 so that its margin 22 extends beyond the cellulose layers of the cushion and is mechanically connected at 23 with the gauze 15 of the sanitary napkin. This connection may be rows of ordinary sewing machine stitching as shown in Figs. 1, 4, Sand 6 or it may be rows of adhesive 230 as indicated in Fig. 7; 111.-

either case, the margins of the non-woven fabric are mechanically secured exteriorly to the gauze 15, thereby holding the cellulose plies to the gauze in that area in which the gauze encircles the margins of the pad. The position of the pad is indicated by the outline in broken lines which appears at 25 in Fig. 5. As is evident both in Fig. 2 and Fig. 3, the cushion extends completely around the side of the pad, being connected to the gauze adjacent opposite faces of the pad.

After the two cushions are attached to the gauze in mutually laterally spaced positions, as shown in Fig. 5, the gauze is assembled to the pad 25 by wrapping the gauze about the pad leaving the cushions at the outside as shown in Figs. 2 and 3.

The non-woven fabric is readily permeated by the petroleum jelly impregnation of the outer ply 20 of cellulosic material which comprises the cushion. Even without such permeation, the non-woven fabric has a characteristically smooth and non-abrasive surface, wholly different from that of the gauze which provides the outer cover for the conventional sanitary napkin. As clearly appears in Fig. 2, when the napkin is in use, the portion of the wearers body which is engaged under pressure by the sides of the folded sanitary napkin contacts only the smooth and desirably lubricated nonwoven fabric at the exterior of the cushion, being spaced by the cushion from the gauze.

This leaves uncoated portions of the pad exposed to receive body secretions and provides protection for those portions of the pad to which the secretions are directed by the barrier plies in the center thereof. In other words, there is a multiple thickness of added material provided by the cushion around the edge of the downwardly turned side margins of the pad.

Fig. 8 diagrammatically illustrates how the several plies of cellulosic material 17, 18, 19 and '20 are drawn from their respective supply rolls, only the latter being passed between rolls 30 and 31 for supplying melted petroleum jelly 32 from trough 33. The transfer roll 30 is equivalent to that used in gluing operations. The webs 17, 18, 19 and 20 are laminated together between guide rolls 34 and 35 and are wound on mandrels 36 in readiness for use. There will be some transfer of petroleum jelly from impregnated ply 20 to plies 17, 18, 19 successively, but this is desirable and does not affect the operation of the cushion as above described.

I claim:

1. As a new article of manufacture a sanitary napkin comprising a pad having a wrapper, and external cushions extending along the side margins of the pad wrapper, the cushion comprising absorbent material and a width of a supplemental wrapper of non-Woven fabric, the latter be ing wider than said material and having a marginal connection with the wrapper of the pad.

2. In a sanitary napkin the combination with an absorbent pad and a wrapper having projecting ends, of cushions each comprising a number of plies of cellulose Patented June 7, 1960 Y Y 3 I tissue and a supplemental confining wrapper, means connecting the supplemental confining wrapper directly to the wrapper first mentioned, the said cushions extending about the margins of the pad externally of the first mentioned wrapper. i y

' 3. The device of claim '2 in which at least one of said cushion plies adjacent the supplemental wrapper carries alubricant. i

4. The sanitary napkin of claim 2 in which the pad comprises a plurality of bats and an intervening distributing ply, each of said cushions extending about the pad with its margins substantially parallel to opposite faces of the pad and embracing a margin of the distributing ply.

5. A sanitary napkin comprising the combination with a pad comprising a plurality of bats and an intervening distributing ply, of a gauze wrapper encircling the pad and having ends projecting therebeyond, and an external cushion of channel shape in cross section connected externally to the gauze wrapper extending about the respective side margins of the pad enveloped in said wrapper, each such cushion comprising a plurality of plies of cellulose shorter than the pad and a ply of non-woven fabric in which the plies of cellulose'are confined, the ply of nonwoven fabric having greater width than the plies of cellulose and projecting laterally therefrom and having direct mechanical connection along its margins with said gauze.

6. The sanitary napkin of claim 5 in which at least one of the plies of cellulose has a petroleum jelly impregnation.

References Cited in the file of this patent UNITED STATES PATENTS

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2092346 *Jun 24, 1936Sep 7, 1937Arone GeorgeCatamenial pad
US2464640 *May 25, 1945Mar 15, 1949Int Cellucotton ProductsSanitary napkin
US2506238 *Sep 27, 1946May 2, 1950Rowe Richard Everard ShewanWrapper suitable for menstrual pads
US2721554 *Aug 2, 1954Oct 25, 1955Joa Curt GeorgeSanitary napkin and absorbent pad which comprises a part thereof
DE501499C *Jul 2, 1930Max MuellerMonatsbinde
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3230955 *Mar 28, 1963Jan 25, 1966Joa Curt G IncSanitary napkin
US3424163 *Apr 15, 1966Jan 28, 1969Saba GmbhSanitary napkin
US4820295 *Feb 11, 1987Apr 11, 1989Personal Products CompanyAbsorbent body with fluid transport means
US5578025 *Jul 6, 1994Nov 26, 1996The Procter & Gamble CompanySanitary napkin having stiffening side stabilizers
US5827254 *Jun 13, 1996Oct 27, 1998The Procter & Gamble CompanyAbsorbent article
US5851204 *Nov 12, 1996Dec 22, 1998Uni-Charm CorporationDisposable absorbent article
US7303708Apr 8, 2005Dec 4, 2007Curt G. Joa, Inc.Super absorbent distribution system design for homogeneous distribution throughout an absorbent core
US7374627Apr 7, 2005May 20, 2008Curt G. Joa, Inc.Method of producing an ultrasonically bonded lap seam
US7398870Oct 5, 2005Jul 15, 2008Curt G. Joa, IncArticle transfer and placement apparatus
US7452436Mar 9, 2006Nov 18, 2008Curt G. Joa, Inc.Transverse tape application method and apparatus
US7533709May 31, 2005May 19, 2009Curt G. Joa, Inc.High speed vacuum porting
US7537215Apr 22, 2005May 26, 2009Curt G. Joa, Inc.Method and apparatus for securing stretchable film using vacuum
US7618513May 31, 2005Nov 17, 2009Curt G. Joa, Inc.Web stabilization on a slip and cut applicator
US7638014Mar 18, 2005Dec 29, 2009Curt G. Joa, Inc.Method of producing a pants-type diaper
US7640962Apr 20, 2005Jan 5, 2010Curt G. Joa, Inc.Multiple tape application method and apparatus
US7703599Apr 12, 2005Apr 27, 2010Curt G. Joa, Inc.Method and apparatus for reversing direction of an article
US7708849Jan 4, 2006May 4, 2010Curt G. Joa, Inc.Apparatus and method for cutting elastic strands between layers of carrier webs
US7770712Feb 17, 2006Aug 10, 2010Curt G. Joa, Inc.Article transfer and placement apparatus with active puck
US7780052May 18, 2006Aug 24, 2010Curt G. Joa, Inc.Trim removal system
US7811403May 7, 2007Oct 12, 2010Curt G. Joa, Inc.Transverse tab application method and apparatus
US7861756May 8, 2007Jan 4, 2011Curt G. Joa, Inc.Staggered cutting knife
US7909956Aug 13, 2009Mar 22, 2011Curt G. Joa, Inc.Method of producing a pants-type diaper
US7975584Feb 21, 2008Jul 12, 2011Curt G. Joa, Inc.Single transfer insert placement method and apparatus
US8007484Apr 1, 2005Aug 30, 2011Curt G. Joa, Inc.Pants type product and method of making the same
US8016972May 8, 2008Sep 13, 2011Curt G. Joa, Inc.Methods and apparatus for application of nested zero waste ear to traveling web
US8172977Apr 5, 2010May 8, 2012Curt G. Joa, Inc.Methods and apparatus for application of nested zero waste ear to traveling web
US8182624Mar 11, 2009May 22, 2012Curt G. Joa, Inc.Registered stretch laminate and methods for forming a registered stretch laminate
US8293056Aug 24, 2010Oct 23, 2012Curt G. Joa, Inc.Trim removal system
US8398793Jul 20, 2007Mar 19, 2013Curt G. Joa, Inc.Apparatus and method for minimizing waste and improving quality and production in web processing operations
US8417374Apr 26, 2010Apr 9, 2013Curt G. Joa, Inc.Method and apparatus for changing speed or direction of an article
US8460495Dec 27, 2010Jun 11, 2013Curt G. Joa, Inc.Method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
US8557077Mar 21, 2011Oct 15, 2013Curt G. Joa, Inc.Method of producing a pants-type diaper
US8656817Mar 7, 2012Feb 25, 2014Curt G. JoaMulti-profile die cutting assembly
US8663411Jun 6, 2011Mar 4, 2014Curt G. Joa, Inc.Apparatus and method for forming a pant-type diaper with refastenable side seams
US8673098Oct 25, 2010Mar 18, 2014Curt G. Joa, Inc.Method and apparatus for stretching segmented stretchable film and application of the segmented film to a moving web
US8794115Jul 7, 2011Aug 5, 2014Curt G. Joa, Inc.Single transfer insert placement method and apparatus
US8820380Mar 29, 2012Sep 2, 2014Curt G. Joa, Inc.Differential speed shafted machines and uses therefor, including discontinuous and continuous side by side bonding
EP0681820A2 *May 2, 1995Nov 15, 1995Uni-Charm CorporationDisposable absorbent article
U.S. Classification604/374, 604/381
International ClassificationA61F13/15
Cooperative ClassificationA61F13/535, A61F13/4755
European ClassificationA61F13/475A2, A61F13/535